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  Protective drainage wrapsUSPTO Application #: 20060194494Title: Protective drainage wraps Abstract: A protective drainage wrap comprises a porous layer, a breathable solid layer portion and a plurality of fibers, filaments, tapes or yarn. The porous layer is adapted to allow water to pass therethrough. The breathable solid layer portion is adapted to allow water vapor to pass therethrough while preventing or inhibiting water from passing therethrough. The plurality of fibers, filaments, tapes or yarn is located between and attached to the porous layer and the breathable solid layer portion. The plurality of fibers, filaments, tapes or yarn forms a plurality of channels to assist in forming a drainage path for draining liquid water from the protective drainage wrap. (end of abstract) Agent: Pactiv Corporation C/o Jenkens & Gilchrist - Chicago, IL, US Inventor: John W. Lubker USPTO Applicaton #: 20060194494 - Class: 442208000 (USPTO) Related Patent Categories: Fabric (woven, Knitted, Or Nonwoven Textile Or Cloth, Etc.), Woven Fabric (i.e., Woven Strand Or Strip Material), Woven Fabric Is Characterized By A Particular Or Differential Weave Other Than Fabric In Which The Strand Denier Or Warp/weft Pick Count Is Specified, Warp Differs From Weft The Patent Description & Claims data below is from USPTO Patent Application 20060194494. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE To RELATED APPLICATIONS [0001] This application is a continuation-in-part of application Ser. No. 10/869,333 filed on Jun. 16, 2004, which is entitled "Method for Producing Protective Drainage Wraps"; application Ser. No. 10/869,333 is a division of application Ser. No. 10/255,273 filed on Sep. 26, 2002 and issued as U.S. Pat. No. 6,869,901; application Ser. No. 10/255,273 is a continuation-in-part of U.S. application Ser. No. 09/788,776 filed on Feb. 20, 2001, and issued as U.S. Pat. No. 6,550,212. application Ser. Nos. 10/869,333; 10/255,273; and 09/788,776 are all incorporated herein by reference in its entirety. FIELD OF THE INVENTION [0002] The present invention relates generally to protective wraps that are used to protect against air infiltration and moisture build-up in buildings. Specifically, the protective wraps of the present invention include a porous layer and a breathable solid layer portion. BACKGROUND OF THE INVENTION [0003] There have been many different protective wraps used in the construction of buildings, such as residential and commercial construction. Protective wraps are used to protect against air infiltration and damaging moisture build-up. Air infiltration may occur in typical construction through, among other places, sheathing seams and cracks around windows and doors. Moisture build-up can occur externally in the wall cavity from, for example, leaking exterior finishes or coverings, and cracks around windows and doors. [0004] Protective wraps are typically used as secondary weather barriers in buildings behind exterior coverings such as stucco. Stucco may be synthetic based (e.g., a polymer-based stucco) or cementitious (a mixture of Portland cement, lime and sand). One type of stucco system, exterior insulation finish system (drainage EIFS), that is used in buildings typically involves using a drainage plane, an insulation board, and a wire or synthetic mesh that accepts a cementitious coating. In existing stucco applications, at least one protective wrap is not typically installed directly in contact with the cementitious coatings. In some instances, multiple layers of protective wrap are installed with one of the layers contacting the cementitious coatings. These multiple layers may be house wrap, building paper or both and are installed in two separate applications. [0005] The protective wraps to be used in stucco applications desirably (a) prevents or inhibits liquid water from passing through the protective wrap into the sheathing or interior wall cavity when a large water head builds up on its surface; (b) attaches to the stucco; and (c) allows water to partially enter into the protective wrap so as to potentially assist the hydration process of the stucco curing. [0006] Accordingly, a need exists for a protective wrap that is adapted to be used in stucco applications that addresses at least some, if not all, of these desirable attributes. SUMMARY OF THE INVENTION [0007] According to one embodiment, a protective drainage wrap comprises a porous layer, a breathable solid layer portion, and a plurality of fibers, filaments, tapes or yarn. The porous layer is adapted to allow liquid water to pass therethrough. The breathable solid layer portion is adapted to allow water vapor to pass therethrough while preventing or inhibiting liquid water from passing therethrough. The plurality of fibers, filaments, tapes or yarn is located between the porous layer and the breathable solid layer portion and is attached to the porous layer and the breathable solid layer portion. The plurality of fibers, filaments, tapes or yarn forms a plurality of channels to assist in forming a drainage path for draining liquid water from the protective drainage wrap. [0008] According to one method, a protective drainage wrap is used in a building. A protective drainage wrap is provided that comprises a porous layer, a breathable solid layer portion and a plurality of fibers, filaments, tapes or yarn. The porous layer is adapted to allow liquid water to pass therethrough. The breathable solid layer portion is adapted to allow water vapor to pass therethrough while preventing or inhibiting liquid water from passing therethrough. The plurality of fibers, filaments, tapes or yarn is located between and attached to the porous layer and the breathable solid layer portion. The plurality of fibers, filaments, tapes or yarn forms a plurality of channels to assist in forming a drainage path for draining liquid water from the protective drainage wrap. At least one framing member is provided. The protective drainage wrap is installed over at least one of the framing members. [0009] According to another method, a protective drainage wrap is used in a building. A protective drainage wrap is provided that comprises a porous layer, a breathable solid layer portion and a plurality of fibers, filaments, tapes or yarn. The porous layer is adapted to allow liquid water to pass therethrough. The breathable solid layer portion is adapted to allow water vapor to pass therethrough while preventing or inhibiting liquid water from passing therethrough. The plurality of fibers, filaments, tapes or yarn is located between and attached to the porous layer and the breathable solid layer portion. The plurality of fibers, filaments, tapes or yarn forms a plurality of channels to assist in forming a drainage path for draining liquid water from the protective drainage wrap. A sheathing is provided. The protective drainage wrap is installed over the sheathing. [0010] According to one method of forming a protective drainage wrap, a porous layer is provided that is adapted to allow liquid water to pass therethrough. A breathable solid layer portion being adapted to allow water vapor to pass therethrough while preventing or inhibiting liquid water from passing therethrough is provided. A plurality of fibers, filaments, tapes or yarn is attached to the porous layer and the breathable solid layer portion. The plurality of fibers, filaments, tapes or yarn is located between the porous layer and the breathable solid layer portion. The plurality of fibers, filaments, tapes or yarn forms a plurality of channels to assist in forming a drainage path for draining liquid water from the protective drainage wrap. BRIEF DESCRIPTION OF THE DRAWINGS [0011] FIG. 1 is a top perspective view of a protective drainage wrap according to one embodiment of the present invention. [0012] FIG. 2 is a cross-sectional view taken generally along line II-II of FIG. 1. [0013] FIG. 3a is a cut-away perspective view of the protective drainage wrap of FIG. 1 fastened to sheathing and a framing member according to one embodiment of the present invention. [0014] FIG. 3b is a side view taken generally along line 3b-3b of FIG. 3a. [0015] FIG. 4a is a cut-away perspective view of the protective drainage wrap of FIG. 1 fastened to a framing member according to one embodiment of the present invention. [0016] FIG. 4b is a side view taken generally along line 4b-4b of FIG. 4a. [0017] While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that it is not intended to limit the invention to the particular forms disclosed but, on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. DESCRIPTION OF SPECIFIC EMBODIMENTS [0018] Turning now to the drawings and referring initially to FIGS. 1 and 2, a protective drainage wrap 110 according to one embodiment is shown. The protective wraps of the present invention, including protective wrap 110, are adapted to be attached over sheathing or framing members. The protective wraps of the present invention are adapted to be used in stucco (e.g., synthetic or cementitious) applications. It is contemplated that the protective wraps may be used in other applications. Continue reading... Full patent description for Protective drainage wraps Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Protective drainage wraps patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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